Combined primary and secondary battery system.



J. H. GUGLER. COMBINED PRIMARY AND SECONDARY BATTERY SYSTEM. APPLICATION FILED JUNE 17, 1909.

94:0,008. Patented Nov. 16, 1909.

Zln-uentoz MWMT @45 59-- MM UNITED STATES PATENT OFFICE.

JULIUS H. GUGLER, OF MILWAUKEE, WISCONSIN.

COMBINED PRIMARY AND-SEGONDARY BATTERY SYSTEM.

Specification of Letters Patent.

Patented Nov.'16, 1909.

Application filed June 17, 1909. Serial No. 502,649.

To all whom it may concern:

Be it known that I, JULIUS I-I. GUGLER, of Milwaukee, \Visconsin, have invented a Combined Primary and Secondary Battery System, of which the following is a specification.

This invention relates to primary battery systems for the distribution of electricity,

.and more particularly to systems wherein a other number may be discharged into the service circuit, in conjunction with a constructlon whlch prevents any of said endcells from being discharged at a time when it or they are not being charged from the primary source of current. It will be'clear that if such a connection is not provided, it may happen that in some cases end-cells are being dlscharged at a time when they are not being charged, and such an event occurring at frequent intervals will lead to the ovfirdischarge and degeneration of the endce s.

In the accompanying drawings, I have illustrated several mechanical embodiments of my invention, and herein Figure l is a diagrammatic view illustrating one form of connection between the switches; Fig. 2 is a similar view showing a second form of connection; and Fig. 3 is a similar view showing a third form of such connection.

In all the drawings, a represents the primary and b the secondary battery; 0, a lighting-, power-, -or other service-system; d, a

multipolar-switch to' the several poles of which are connected the end-cells a of the primary battery; and e and f two multipolar switches, the several poles of each of which are respectively connected to the endcells b of the secondary battery 6, as shown. One terminal of each battery is connected by a lead g'to one terminal of the service-system c, and the other terminal of said servicesystem is connected by a lead it with the switch-bar of the switch f as shown. Furconnected (through the switch d where that is used) by a lead 71 with the switch-bar of the switch 6; Finally, there is a mechanical connection between the two switch-bars e and f which limits their movements withrespect to'one another, so that any of the end-cells b which are set by the switch f to dischargeinto the service system c are also connected by the switch 6 in circuit with the charging batterv a, and thereb any end-cell Z) is prevented lrom bein disc arged at any time unsupported by the attery a.

The connection between the switches may take various mechanical forms, and in Fig. 1 1t 1s shown'as a flexible connection such as a cord, chain or strap j, in which, if it is of a metallic or conducting nature, an insulator k is interposed. The length of this connection is such that it is drawn tight whenever the two switch-bars e-and f are on corresponding poles of their respective switches. When in such position the switchbar 6 can be shifted to the right so as to connect more end-cells to the charging-battery without disturbing the setting of the switch f, and in like manner the switch 7 can be moved to the left to cutout one or more end-cells b from the discharging circuit without afiecting the setting or the switch a; but should the switch 6 be moved to the left it will drag with it the switch I to a corresponding manner should the s'wltch f be moved to the right it will drag with it tlle switch 6, thus acting to include as many cells 6 in the charging'circuit as are included in the discharging circuit.

In Fig. 2 the mechanical connection between the two switches is somewhat different, here taking the form of a bar 7" in two pieces divided electrically by an insulator is; one end of said bar j being pivoted to a pin m on the bar of the switch e, and the other having a slot n therein which slides upon a pin 0 on the bar of the switch f. The length of the bar y" between the outer end of the slot and the pivotedend is equal to the distance between the corresponding pins m and 0 when the two switches are set in corresponding positions as previously described;

so that the efiect, as will be readily seen,is the same as in Fig. l. I

In Fig. 3 the two swltches e and f have been transposed, and they are connected by l a bar which is electrically dividedby anthermore, the other end of the battery mm 1 insulator 7c Said bar 7'" is. pivoted at one osition; and in like end on a pin m on the bar of one of the switches, for example the switch 7, and at 5 the other end slides in a ring 0 mounted on the bar of the other switch; and a collar 32 is formed on the bar j" in such position as to abut upon the ring 0 when the switchbars of the two switches are in corresponding positions; then the switch cannot be moved to the right without also moving the bar 6 correspondingly, and likewise the bar e cannot be so moved without in like manner shifting the bar 7.

' From the foregoing description it will be seen that the construction may take various mechanical forms, to none of which, however, the invention is limited.

.Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A system of electrical distribution comprising, in combination; a primary battery comprising a plurality of cells, a secondary battery comprising a plurality of cells, a service-circuit one pole of which is connected to one pole of said primary battery and to one pole of said secondary battery, a multipolar switch several poles of which are connected to successive end-cells on the free end of said primary battery, a pair of multipolar switches the fixed pole of e of which is connected to said first-nam witch and the fixed pole oithe other to tlfi other pole of said service- .uit and the several movable poles of e f said pair of switches being connected to successive end-cells of said secondary battery in corresponding succession, and a mechanical connection between the movable elements of the respective switches which limits the osition of the switch in the discharging-circuit to one of the poles connectedtto the cells in the charging-circuit.

2. A system of electrical distribution comprising asecondary battery, a primary battery connected to opposite poles thereof to charge said battery and a servlce-system connected to opposite poles thereof to discharge said battery, a multipolar switch interposed in the circuit between one end of said sec- Jndary battery and one end of said primary 51 battery and the several poles of which are connected to the several end-cells of said secondary battery, a second multipolar switch interposed in the discharging-circuit between the same end of said secondary battery and 5: said service-circuit, and the several poles of which are connected to the several end-cells of said secondary battery in the same manner as said first-named switch; and a connection between the moving-elements of the St two switches limiting the adjustment of said last-named switch to poles corresponding to end-cells which are included in the chargingcircuit.

3. A system of electrical distribution com- 6: prising, in combination with a secondary battery and a pair of multipolar-switches respectively connected to successive end-cells thereof, a service or discharging-circuit one pole of which is connected to one of said 7( multipolar switches, a charging-circuit including a source of electric current one pole of whichpis/connected to the other multipolar-switch, and the other pole of said discharging-circuit being connected to the other 7: pole of said secondary-battery, a mechanical connection between the movable elements of said switc hes which prevents the discharging-switch from being moved to a position including more end-cells than are included 8( by the charging-switch but-permits it to be moved to a position including less end-cells than are included by the charging-switch and prevents said charging-switch rom being moved to a position cutting out end-cells 8: included in the discharging circuit but ermits it to, be moved to a osition inclw ing cells not included in the discharging-circuit.

In witness whereof I have hereunto set my hand this 14th day of June 1909.

JULIUS H. GUGLER. W'itnesses:

A. H. BLATCELEY, JAs. O. Pamson. 

